DE102016105297B4 - nipple - Google Patents

Abstract

A nipple for a coupling, the nipple including a nipple body (100) including a through hole (200) and an end (300) for engaging a coupling; the through hole (200) having a first portion (210) with a first diameter (212) and a second section (220) having a second diameter (222), the second section (220) being adjacent to the first section (210), the second section (220) being closer to the end (300) than the first section (210), and wherein the second diameter (222) is larger than the first diameter (212) so that between the first section (210) and the second section (220) there is a shoulder (230) is formed; and wherein the nipple body (100) and through hole (200) further include one or more openings (240) extending through the shoulder (230).

Description

technical field

The present disclosure relates to quick connect couplings. More specifically, the present disclosure relates to a nipple for a quick connect coupling.

background

Couplings, such as hydraulic couplings, often include a coupler and nipple. The nipple can be referred to as the male part and the coupling as the female part. Such couplings are used to connect hydraulic fluids.

A well-known nipple, such as CEJN's 116 series high-pressure hydraulic nipple, is made of a nipple body and a tube inside the nipple. The tube engages and opens the valve of the coupling when the nipple and a coupling are connected. This construction causes several problems. It requires assembling the two parts, the nipple body and the tube, and also correctly assembling the parts relative to each other. The tube exhibits a variation in its length, in particular under the influence of heat. It is therefore desirable to overcome these problems and improve the nipple.

It is also desirable to provide a nipple that is inexpensive to manufacture, simple to manufacture, and robust. It must also be possible to manufacture the nipple in different sizes. The present disclosure is directed to overcoming one or more of the problems set forth above.

DE 44 14 522 A1 describes a male connector for a quick-disconnect coupling for connecting a hose and receiving it in a socket, the purpose of which is to avoid an accident caused by pulsating banging when the connector is disconnected. Furthermore, from the GB 504 404 A a pipe connection with a multi-part coupling element and a valve arrangement is known, which should be prevented during coupling that fluid is lost.

Overview of the Invention

It is an object of the present invention to provide a nipple for a coupling. This aim can be achieved by the features defined by the independent claim. Further improvements are characterized by the dependent claims.

According to one embodiment, a nipple for a clutch is disclosed. The nipple includes a nipple body (100) containing a through hole (200) and an end (300) for engaging a coupling. The through hole (200) includes a first section (210) with a first diameter (212) and a second section (220) with a second diameter (222) of the through hole (200). The second section (220) is adjacent to the first section, the second section (220) is closer to the end (300) than the first section (210), and the second diameter (222) is larger than the first diameter (212 ) such that a shoulder (230) is formed between the first section (210) and the second section (220). The nipple body (100) and through hole (200) further include one or more openings (240) extending through the shoulder (230). According to one embodiment, the one or more openings (240) extend through at least a portion of the first section (210) and through the shoulder (230). According to one embodiment, the one or more openings (240) extend through at least a portion of the second section (220) and through the shoulder (230). According to one embodiment, the one or more openings (240) extend through at least a portion of the first section (210) and the second section (220) and through the shoulder (230). Thus, in these embodiments, the one or more openings (240) extend through at least a portion of the nipple body (100).

According to one embodiment, the one or more openings (240) extend through at least a portion of the first section (210) and through the shoulder (230). Instead, or in addition, the one or more apertures (240) extend through at least a portion of the second section (220) and through the shoulder (230).

According to one embodiment, the nipple is a single, integral piece. The second diameter (222) can vary. The second diameter may not be constant. According to one embodiment, the first diameter (212) is constant and the second diameter (222) varies and is larger closer to the end (300).

According to one embodiment, the through hole (200) includes one, two, three, four, five or six openings (240). The shoulder (230) can extend perpendicular to an axis (202) of the through hole (200). An axis (242) of the one or more openings (240) can be about 0 to 60 degrees to an axis (202) of the through hole (200), preferably 22 degrees.

According to one embodiment, the nipple is adapted for high pressure fluids, preferably 70 MPa or more. According to one embodiment, the coupling may be a quick connect coupling.

At least one of the above embodiments provides one or more solutions to the problems and disadvantages of the prior art. Other technical advantages of the present disclosure will be readily apparent to those skilled in the art from the following description and claims. Various embodiments of the present application obtain only a subset of the advantages set forth herein. No single advantage is essential to the embodiments. Any claimed embodiment can be technically combined with any other claimed embodiment(s).

character list

• 1 ist eine schematische Darstellung eines Querschnitts eines Nippels gemäß einer beispielhaften Ausführungsform der vorliegenden Offenbarung;
• 2 ist eine schematische Darstellung einer Endansicht eines Nippels gemäß einer beispielhaften Ausführungsform der vorliegenden Offenbarung; und
• 3 zeigt eine schematische Darstellung eines Nippels gemäß einer beispielhaften Ausführungsform der vorliegenden Offenbarung.

The accompanying drawings presently illustrate exemplary embodiments of the disclosure and, together with the general description given above and the detailed description of embodiments given below, serve to exemplify the principles of the invention.

• 1 12 is a schematic representation of a cross section of a nipple according to an exemplary embodiment of the present disclosure;
• 2 12 is a schematic representation of an end view of a nipple according to an exemplary embodiment of the present disclosure; and
• 3 FIG. 12 shows a schematic representation of a nipple according to an exemplary embodiment of the present disclosure.

Detailed description

1 12 is a schematic representation of a nipple according to an exemplary embodiment of the present disclosure. The nipple is shown here cut through its center along its axis. 2 12 is a schematic representation of the same nipple according to an exemplary embodiment of the present disclosure. The nipple is shown here with a view of one end, which is the end that enters the coupling. The clutch is not shown as it is not part of the disclosure. The nipple corresponds to a male part and the coupler corresponds to a female part, and the male part and the female part can be coupled with each other.

The nipple is intended for a coupling, preferably a quick-release coupling. The nipple can be for a high pressure coupling. High pressure may be 70 MPa or more, or 100 MPa or more, or 150 MPa or more, or 200 MPa or more, or 300 MPa or more, or 400 MPa or more. The nipple can be for a fluid such as air, gas, liquid, hydraulic fluid and so on. The nipple can be for a high pressure quick fit coupling.

The nipple includes a nipple body (100). The nipple body (100) can be made from a single piece. Nipple body (100) may be made of, for example, stainless steel, zinc plated, or electroless nickel plated steel for use in corrosive environments. A separate tube, as is required in the prior art, is not necessary. The nipple body (100) includes a through hole (200) and an end (300) for engaging a coupling. A through hole (200) passes through the entire nipple body (100) to allow fluid to pass through the nipple. The through hole (200) is preferably round. The through hole (200) has an axis (202), which can also be a central axis of the entire nipple body (100). The end (300) is the end of the nipple body (100) that enters the coupling, the female part.

The through hole (200) includes a first portion (210) having a first diameter (212) and a second portion (220) having a second diameter (222). Diameters may not be constant and will vary. The first section (210) and the second section (220) are different parts of the through hole (200). For better understanding, the first section (210) in 1 as S1 and the second section (220) in 1 specified as S2. The second section (220) is adjacent to the first section (210). The first section (210) and the second section (220) of the through hole (200) are located next to each other. The second section (220) is closer to the end (300) than the first section (210). Viewed from the end (300), the first section (210) follows the second section (220).

The second diameter (222) of the second section (220) is larger than the first diameter (212) of the first section (210). At least the second diameter (222) of the second section (220) adjacent to the first section (210) is larger than the first diameter (212) of the first section (210). This creates a shoulder (230) between the first section (210) and the two th section (220) formed. This shoulder (230) is adapted to engage a valve in the coupler when the nipple engages the coupler. The shoulder is formed because the second diameter (222) is larger, wider, than the first diameter (212) of the through hole (200). This difference between the adjacent first section (210) and the second section (220) results in the first section (210) extending further inward, the through hole (200) being narrower than the second section (220), where the through hole (200) is wider and this difference, the extension, forms the shoulder (230). The shoulder may be like a shoulder extending around and substantially radially to the axis (20) of the through hole (200).

The nipple body (100) and through hole (200) further include one or more openings (240) extending through the shoulder (230). The one or more openings (240) open at a partial height of the shoulder (230) so that fluid can flow between the first section (210) and the second section (220) via the one or more openings (240). Such fluid flow can occur when the shoulder (230) engages and opens a valve in a coupling. A plurality of the openings (240) separates the shoulder (230) into a plurality of segments. The openings (240) may be a machined round hole, as in the exemplary embodiment of FIG 1-3 shown. The openings (240) can be of any shape, such as rectangular, polygonal, semi-circular, and so on.

According to one embodiment, the one or more openings (240) extend through at least a portion of the first section (210) and through the shoulder (230). According to one embodiment, the one or more openings (240) extend through at least a portion of the second section (220) and through the shoulder (230). According to one embodiment, the one or more openings (240) extend through at least a portion of the first section (210) and the second section (220) and through the shoulder (230). In these embodiments, the one or more openings (240) open at a partial height of the shoulder (230) so that the fluid can flow through the one or more openings (240) between the first section (210) and the second section (220). of the through hole (200) can flow. Such fluid flow can occur when the shoulder (230) engages and opens or closes a valve in a coupling.

According to one embodiment, the nipple is a single, integral piece. The nipple body may be made from a solid, single, integral piece, preferably made of the same material. The 1-3 it can be seen that the nipple, the nipple body (100), is made of a single integral piece made of the same material. Nipple body (100) may be made of, for example, stainless steel, zinc plated, or electroless nickel plated steel for use in corrosive environments. By using only a single integral piece and providing it with one or more openings (240) as described above, the need for a separate tube is eliminated.

According to one embodiment, the second diameter (222) of the second section (220) of the through hole (200) can vary. The second diameter (222) may not be constant. A variation of the second diameter (222) can form a second portion (220) that opens like a cone towards the end (300), for example. The second diameter (222) may increase or decrease or both, in a constant manner or not, over all or just a portion of the second section (220). The example of the second paragraph (220) in 1 shows a second section (220) with an opening towards the end (300) and an increasing second diameter (222) forming a truncated cone or a truncated cone.

According to one embodiment, the first diameter (212) is constant and the second diameter (222) varies and is larger closer to the end (300). This exemplary embodiment is in 1 illustrated. The second diameter (222) of the second section (220) can here increase in a constant manner towards the end (300), while the first diameter (212) of the first section (210) can be constant. In this embodiment, the second diameter (222) is adjacent to the first diameter (212) to form the shoulder (230).

According to one embodiment, the nipple body (100) and the through hole (200) include three openings (240). The openings (240) can be, for example, one, two, three, four, five, six, seven, eight, nine or ten openings (240). These openings (240) can be arranged at a regular distance from one another. As in 2 and 3 For example, as shown, they may be uniformly spaced 120 degrees from each other around the through hole (200). In this way, the shoulder (230) is evenly divided into a plurality of shoulder sections. This provides smooth flow and good mechanical engagement of a valve when the nipple engages a coupler.

According to one embodiment, the shoulder (230) extends perpendicular to the axis (202) of the through hole (200). This gives good assistance to engage a valve in a clutch. Instead or in addition, the shoulder (230) can also be inclined in one direction, for example +/- 60 degrees to its perpendicular orientation.

According to one embodiment, an axis (242) of the one or more openings (240) is approximately 0 to 60 degrees to the axis (202) of the through hole (200), preferably 22 degrees. The axis (242) of the one or more openings (240) is in 1 and forms an angle of about 22 degrees with the axis (202) of the through hole (200). Axis (242) may be parallel to axis (202). Axis (242) can form any angle from 0 to 60 degrees with axis (202). According to one embodiment, the nipple is adapted for high pressure fluids. High pressure fluids can be 70 MPa or more, or 100 MPa or more, or 150 MPa or more, or 200 MPa or more, or 300 MPa or more, or 400 MPa or more. The nipple can be for a fluid such as air, gas, liquid, hydraulic fluid and so on. The nipple can be for a high pressure quick fit coupling. Customization can be made by selecting appropriate metal, dimensions and machining. In one embodiment, the nipple may be made of steel and chemically treated or heated to harden.

According to at least one embodiment disclosed herein, the nipple need not have an inner tube for engaging a valve in a coupling. By eliminating the tube with the possibility of variations in the length of the tube, a more accurate opening of the valve can be achieved. Since the nipple body is made from a single integral piece, assembly costs can be eliminated and the nipple is robust. The nipple can also be manufactured inexpensively because only one or more openings (240) have to be made. The nipple can also be easily manufactured in different sizes. The manufacturing process leads to a high and easily controllable quality of the nipple.

It will be apparent to those skilled in the art that various modifications and variations can be made to the nipple. Other embodiments will become apparent to those skilled in the art from consideration of the specification and practice of the disclosed nipple. It is intended that the specification and examples be considered as exemplary only, with a true scope being indicated by the following claims.

Reference List

100

Nippel-Körper

200

Durchgangsloch

202

Achse des Durchgangslochs

210

erster Abschnitt

212

erster Durchmesser

220

zweiter Abschnitt

222

zweiter Durchmesser

230

Schulter

240

eine oder mehrere Öffnungen

242

Achse einer oder mehrerer Öffnungen

300

Ende (zum Eingriff in eine Kupplung)

nipple

100

nipple body

200

through hole

202

Axis of the through hole

210

first section

212

first diameter

220

second part

222

second diameter

230

shoulder

240

one or more openings

242

Axis of one or more openings

300

End (to engage a clutch)

Claims (12)

A nipple for a clutch, the nipple including a nipple body (100) including a through hole (200) and an end (300) for engaging a coupling; wherein the through hole (200) includes a first portion (210) having a first diameter (212) and a second portion (220) having a second diameter (222), the second section (220) being adjacent to the first section (210), the second section (220) being closer to the end (300) than the first section (210), and the second diameter (222) being greater than the first diameter (212) such that a shoulder (230) is formed between the first section (210) and the second section (220); and wherein the nipple body (100) and through hole (200) further include one or more openings (240) extending through the shoulder (230). nipple according to claim 1 wherein the one or more apertures (240) extend through at least a portion of the first section (210) and through the shoulder (230). nipple according to claim 1 or 2 wherein the one or more apertures (240) extend through at least a portion of the second section (220) and through the shoulder (230). A nipple according to any one of the preceding claims, wherein the nipple is a single integral piece. A nipple according to any one of the preceding claims, wherein the second diameter (222) varies along its axis (202). A nipple according to any one of the preceding claims, wherein the first diameter (212) is constant and the second diameter (222) varies and is larger nearer the end (300). A nipple according to any one of the preceding claims, wherein the nipple body (100) and through hole (200) include three openings (240). A nipple according to any one of the preceding claims, wherein the shoulder (230) extends perpendicularly to an axis (202) of the through hole (200). Nipple according to one of the preceding claims, wherein an axis (242) of the one or more openings (240) is 0 to 60 degrees to an axis (202) of the through hole (200), preferably 22 degrees. A nipple according to any one of the preceding claims, wherein the nipple is adapted for high pressure fluids. Nipple according to one of the preceding claims, wherein the nipple is intended for a quick connect coupling. nipple according to claim 1 , wherein the nipple body (100) and the through hole (200) include one or two or four or five or more openings (240).

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